Union County, Iowa
Union County, Iowa, has 11,829 residents (July 2025 estimate). Its county seat is Creston. It uses Central Time and covers 424 sq mi (1,097 km²) of land.
- Resident population, July 2025
- 11,829
- Land area
- 424 sq mi (1,097 km²)
- County seat or government
- Creston
- Time zone
- Central TimeUTC-06:00 in January; UTC-05:00 in July
- Median household income
- $57,772 ± $5,799
- Median home value
- $122,000 ± $7,392
- Median rent, with utilities
- $721 ± $66
- Homes lived in by their owners
- 72.1% ± 2.8 points
- County type
- County
- Metro or micro area
- Outside any metro or micro areaNext to: Des Moines-West Des Moines, IA metro area
- Water area
- 2.15 sq mi (5.58 km²)
- State
- Iowa
- County code (FIPS)
- 19175
- Coordinates (central point)
- 41.028550, -94.245091
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in Union County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Central TimeAmerica/Chicago | UTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 508019,034 people
- 508512,193 people
- 508301,846 people
- 501741,259 people
- 50149883 people
- 50845831 people
- 50861311 people
- 50254296 people
- 50074215 people
- 5084299 people
- 5083122 people
11 ZIP Code areas overlap Union County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
Townships in Union County, largest first
- Union Township1,184 people
- Douglas Township630 people
- New Hope Township581 people
- Dodge Township399 people
- Highland Township354 people
- Jones Township310 people
- Grant Township282 people
- Lincoln Township229 people
- Spaulding Township190 people
- Platte Township189 people
- Sand Creek Township126 people
- Pleasant Township84 people
People counts are American Community Survey 2020–2024 5-year estimates. All townships in Iowa, by county
School districts in Union County, largest first
- Creston Community School District9,847 people
- East Union Community School District3,176 people
- Lenox Community School District2,511 people
- Murray Community School District1,474 people
- Orient-Macksburg Community School District1,160 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Creston, Iowa (city)7,435 people
- Afton, Iowa (city)817 people
- Lorimor, Iowa (city)319 people
- Shannon City, Iowa (city)115 people
- Cromwell, Iowa (city)103 people
- Arispe, Iowa (city)78 people
- Thayer, Iowa (city)45 people
- Kent, Iowa (CDP)0 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Ringgold County, Iowa20 mi south
- Adams County, Iowa24 mi west
- Clarke County, Iowa24 mi east
- Adair County, Iowa24 mi northwest
- Madison County, Iowa24 mi northeast
- Taylor County, Iowa31 mi southwest
- Decatur County, Iowa31 mi southeast
Before using this answer on a form
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